Dominant thermal defects in B2–FeAl

It is shown within the framework of the ab initio statistical mechanics that the triple defect formation is not the dominant thermal excitation in stoichiometric B2–FeAl, at least at low temperatures. Therefore the customary type of analysis of magnetic susceptibility measurements exclusively in ter...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2002-01, Vol.323 (1), p.487-490
Main Authors: Bester, G, Meyer, B, Fähnle, M, Fu, C.L
Format: Article
Language:English
Subjects:
Ab initio statistical mechanics
Atomic defects
B2–FeAl
Condensed matter: structure, mechanical and thermal properties
Defects and impurities in crystals
microstructure
Exact sciences and technology
Kinetics of defect formation and annealing
Magnetic susceptibility measurements
Physics
Structure of solids and liquids
crystallography
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Summary:It is shown within the framework of the ab initio statistical mechanics that the triple defect formation is not the dominant thermal excitation in stoichiometric B2–FeAl, at least at low temperatures. Therefore the customary type of analysis of magnetic susceptibility measurements exclusively in terms of triple defects may yield erroneous results for the concentration of Fe vacancies.
ISSN:0921-5093
1873-4936
DOI:10.1016/S0921-5093(01)01523-4